On Thu, Mar 17, 2005 at 04:20:26PM -0800, Paul E. McKenney wrote:
> 5. Scalability -and- Realtime Response.
...
> void
> rcu_read_lock(void)
> {
> preempt_disable();
> if (current->rcu_read_lock_nesting++ == 0) {
> current->rcu_read_lock_ptr =
> &__get_cpu_var(rcu_data).lock;
> read_lock(current->rcu_read_lock_ptr);
> }
> preempt_enable();
> }
Ok, here's a rather unsure question...
Uh, is that a sleep violation if that is exclusively held since it
can block within an atomic critical section (deadlock) ?
bill
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